87 static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)  in hci_uart_tx_complete()  argument
89 	struct hci_dev *hdev = hu->hdev;  in hci_uart_tx_complete()
107 static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)  in hci_uart_dequeue()  argument
109 	struct sk_buff *skb = hu->tx_skb;  in hci_uart_dequeue()
112 		skb = hu->proto->dequeue(hu);  in hci_uart_dequeue()
114 		hu->tx_skb = NULL;  in hci_uart_dequeue()
119 int hci_uart_tx_wakeup(struct hci_uart *hu)  in hci_uart_tx_wakeup()  argument
121 	struct tty_struct *tty = hu->tty;  in hci_uart_tx_wakeup()
122 	struct hci_dev *hdev = hu->hdev;  in hci_uart_tx_wakeup()
125 	if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {  in hci_uart_tx_wakeup()
126 		set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_tx_wakeup()
133 	clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_tx_wakeup()
135 	while ((skb = hci_uart_dequeue(hu))) {  in hci_uart_tx_wakeup()
144 			hu->tx_skb = skb;  in hci_uart_tx_wakeup()
148 		hci_uart_tx_complete(hu, bt_cb(skb)->pkt_type);  in hci_uart_tx_wakeup()
152 	if (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state))  in hci_uart_tx_wakeup()
155 	clear_bit(HCI_UART_SENDING, &hu->tx_state);  in hci_uart_tx_wakeup()
175 	struct hci_uart *hu  = hci_get_drvdata(hdev);  in hci_uart_flush()  local
176 	struct tty_struct *tty = hu->tty;  in hci_uart_flush()
180 	if (hu->tx_skb) {  in hci_uart_flush()
181 		kfree_skb(hu->tx_skb); hu->tx_skb = NULL;  in hci_uart_flush()
188 	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_flush()
189 		hu->proto->flush(hu);  in hci_uart_flush()
211 	struct hci_uart *hu;  in hci_uart_send_frame()  local
221 	hu = hci_get_drvdata(hdev);  in hci_uart_send_frame()
225 	hu->proto->enqueue(hu, skb);  in hci_uart_send_frame()
227 	hci_uart_tx_wakeup(hu);  in hci_uart_send_frame()
244 	struct hci_uart *hu = (void *) tty->disc_data;  in hci_uart_tty_open()  local
250 	if (hu)  in hci_uart_tty_open()
258 	if (!(hu = kzalloc(sizeof(struct hci_uart), GFP_KERNEL))) {  in hci_uart_tty_open()
263 	tty->disc_data = hu;  in hci_uart_tty_open()
264 	hu->tty = tty;  in hci_uart_tty_open()
267 	spin_lock_init(&hu->rx_lock);  in hci_uart_tty_open()
288 	struct hci_uart *hu = (void *)tty->disc_data;  in hci_uart_tty_close()  local
295 	if (hu) {  in hci_uart_tty_close()
296 		struct hci_dev *hdev = hu->hdev;  in hci_uart_tty_close()
301 		if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {  in hci_uart_tty_close()
306 			hu->proto->close(hu);  in hci_uart_tty_close()
309 		kfree(hu);  in hci_uart_tty_close()
323 	struct hci_uart *hu = (void *)tty->disc_data;  in hci_uart_tty_wakeup()  local
327 	if (!hu)  in hci_uart_tty_wakeup()
332 	if (tty != hu->tty)  in hci_uart_tty_wakeup()
335 	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_wakeup()
336 		hci_uart_tx_wakeup(hu);  in hci_uart_tty_wakeup()
353 	struct hci_uart *hu = (void *)tty->disc_data;  in hci_uart_tty_receive()  local
355 	if (!hu || tty != hu->tty)  in hci_uart_tty_receive()
358 	if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_receive()
361 	spin_lock(&hu->rx_lock);  in hci_uart_tty_receive()
362 	hu->proto->recv(hu, (void *) data, count);  in hci_uart_tty_receive()
363 	hu->hdev->stat.byte_rx += count;  in hci_uart_tty_receive()
364 	spin_unlock(&hu->rx_lock);  in hci_uart_tty_receive()
369 static int hci_uart_register_dev(struct hci_uart *hu)  in hci_uart_register_dev()  argument
382 	hu->hdev = hdev;  in hci_uart_register_dev()
385 	hci_set_drvdata(hdev, hu);  in hci_uart_register_dev()
391 	hdev->parent = hu->tty->dev;  in hci_uart_register_dev()
393 	if (test_bit(HCI_UART_RAW_DEVICE, &hu->hdev_flags))  in hci_uart_register_dev()
396 	if (!test_bit(HCI_UART_RESET_ON_INIT, &hu->hdev_flags))  in hci_uart_register_dev()
399 	if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))  in hci_uart_register_dev()
413 static int hci_uart_set_proto(struct hci_uart *hu, int id)  in hci_uart_set_proto()  argument
422 	err = p->open(hu);  in hci_uart_set_proto()
426 	hu->proto = p;  in hci_uart_set_proto()
428 	err = hci_uart_register_dev(hu);  in hci_uart_set_proto()
430 		p->close(hu);  in hci_uart_set_proto()
453 	struct hci_uart *hu = (void *)tty->disc_data;  in hci_uart_tty_ioctl()  local
459 	if (!hu)  in hci_uart_tty_ioctl()
464 		if (!test_and_set_bit(HCI_UART_PROTO_SET, &hu->flags)) {  in hci_uart_tty_ioctl()
465 			err = hci_uart_set_proto(hu, arg);  in hci_uart_tty_ioctl()
467 				clear_bit(HCI_UART_PROTO_SET, &hu->flags);  in hci_uart_tty_ioctl()
475 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_ioctl()
476 			return hu->proto->id;  in hci_uart_tty_ioctl()
480 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_ioctl()
481 			return hu->hdev->id;  in hci_uart_tty_ioctl()
485 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_ioctl()
487 		hu->hdev_flags = arg;  in hci_uart_tty_ioctl()
491 		return hu->hdev_flags;  in hci_uart_tty_ioctl()